Enhancement of the THz emission of Si wafers by the deposition of ZnO films

Authors

Melvin John Empizo ⋅ PH National Institute of Physics, University of the Philippines Diliman
Maria Michiko Alcanzare ⋅ PH National Institute of Physics, University of the Philippines Diliman
Jan Isaac Bugante ⋅ PH National Institute of Physics, University of the Philippines Diliman
Aleena Maria Laganapan ⋅ PH National Institute of Physics, University of the Philippines Diliman
Mayraluna Lao ⋅ PH National Institute of Physics, University of the Philippines Diliman
Maria Herminia Balgos ⋅ PH National Institute of Physics, University of the Philippines Diliman
Rafael Jaculbia ⋅ PH National Institute of Physics, University of the Philippines Diliman
Joselito Muldera ⋅ PH National Institute of Physics, University of the Philippines Diliman
Armando Somintac ⋅ PH National Institute of Physics, University of the Philippines Diliman
Arnel Salvador ⋅ PH National Institute of Physics, University of the Philippines Diliman
Roland Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman
Elmer Estacio ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Terahertz (THz) emission was demonstrated from silicon (Si) wafers deposited with zinc oxide (ZnO) films for the first time. The ZnO films were prepared by the oxidation of pulsed laser deposited zinc (Zn) thin films. The THz emission of Si was enhanced by the underlying ZnO layer regardless of the oxidation time and film microstructure. We offer an explanation of the enhanced emission mechanism in the basis of charge carrier acceleration due to large surface fields at the ZnO/Si interface.

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Issue

2012: Proceedings of the 30th Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP2012-PB-20

Section

Poster Session PB

Published

2012-10-22

How to Cite

[1]

MJ Empizo, MM Alcanzare, JI Bugante, AM Laganapan, M Lao, MH Balgos, R Jaculbia, J Muldera, A Somintac, A Salvador, R Sarmago, and E Estacio, Enhancement of the THz emission of Si wafers by the deposition of ZnO films, Proceedings of the Samahang Pisika ng Pilipinas 30, SPP2012-PB-20 (2012). URL: https://proceedings.spp-online.org/article/view/SPP2012-PB-20.